Inlets

Streams entering a lake provide a food supply and a change in both water
temperature and oxygenation. Also, inlet streams concentrate fish at
spawning times. In inlet bays fish stack up during the pre-spawn. Inlet
areas modify a lake’s structure from shallows to increased depths
because stream channels erode winding paths through a lake’s
bottom.

Fish are noticeably alert in these locations because birds of prey have
learned that these are good areas to fish.

Incoming current stacks up against the lake’s stillwaters to create
a mini-rip effect; in fact, these rip currents develop vertical walls of
water which concentrate incoming foods. Its surface collection of flotsam
is readily noticeable so this concentration of food will attract hungry
fish.